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nfc: st-nci: Free data with irrelevant NDLC PCB_SYNC value

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PCB_SYNC different than PCB_TYPE_SUPERVISOR or PCB_TYPE_DATAFRAME
should be discarded.

Irrelevant data may be forwarded up to the ndlc state machine by
phys like spi to prevent missing potential data during "write"
transactions.

Cc: [email protected]
Signed-off-by: Christophe Ricard <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Christophe Ricard 2015-08-14 22:33:36 +02:00 • committed by Samuel Ortiz
commit 8b706884ea
1 changed files with 3 additions and 1 deletions
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4
drivers/nfc/st-nci/ndlc.c
View file

@ -198,8 +198,10 @@ static void llt_ndlc_rcv_queue(struct llt_ndlc *ndlc)
kfree_skb(skb);
break;
}
} else {
} else if ((pcb & PCB_TYPE_MASK) == PCB_TYPE_DATAFRAME) {
nci_recv_frame(ndlc->ndev, skb);
} else {
kfree_skb(skb);
}
}
}